Why Not Accept TreeView SelectedNode based onTextBox.Text ?

[si_the_geek]

As implied earlier, it is about the code:

            If n.Text = "Users" Then

That is a case sensitive comparison (ie: only "Users" will match, "users" or "USERS" etc wont), and you want a case insensitive comparison.

Following the advice about a web search (using the text jmcilhinney provided) gives many relevant results, including this one:
https://docs.microsoft.com/en-us/dot...ypes/comparing